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由于近代量热技术的成功,为协同萃取机理的研究提供了新的手段。它以金属的一元(或二元)配合物为底液,以第二(或第三)配体为滴定剂,用滴定量热方法直接测定在298K时二元(或三元)协萃反应过程中吸收或释放的热量。根据滴定量热曲线,确定配体与金属配合物,究竟是生成一级二元协萃配合物,例如,UO_2(TTA)_2·N503和Th(TTA)_4·N503,还是生成二级二元协萃配合物,例如Nd(TTA)_3·TOPO和Nd(TTA)_3·(TOPO)_2。本文研究对象
Due to the success of modern calorimetry, it provides a new method for the study of synergistic extraction mechanism. It uses a metal (or binary) complexes as a base solution, the second (or third) ligand titrant, titration calorimetry direct determination of binary (or ternary) synergetic reaction at 298K Heat absorbed or released during the process. According to the titration calorimetry curve, it is determined whether the ligand and the metal complex form a first-order binary coordination complex, for example, UO_2 (TTA) _2 · N503 and Th (TTA) _4 · N503, Coordination complexes, such as Nd (TTA) _3 · TOPO and Nd (TTA) _3 · (TOPO) _2. This article research object